Dual use of a local Protosiphon isolate BENHA2020 for biodiesel production and antioxidant activity of lipid-free biomass: A novel biorefinery approach for biomass valorization

Abomohra, Abd El‐Fatah; Eladel, Hamed; Mohammed, Soha

doi:10.1016/j.renene.2021.12.028

Cited by 5 publications

(4 citation statements)

References 56 publications

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“…In general, omega-3 fatty acids represent the largest proportion of unsaturated fatty acids in most isolates, especially A. quadricellulare and M. minutum Moreover, the predominant active omega-3 fatty acid in most isolates is α-linolenic acid, which constitutes about a quarter of fatty acids content in A. quadricellulare compared to other sources of lipids, similar results in which the soil algae Protosiphon botryoides produced fatty acids with high PUFAs and high omega-3 fatty acids (Abomohra et al 2022).…”

Section: Omega Fatty Acids From Microalgaesupporting

confidence: 57%

Screening of the potentiality of four green microalgae to be used as feedstock for biodiesel and nutraceutical production

Mohamed

Eladel

Battah

et al. 2022

Egyptian Journal of Phycology

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Detection of oleaginous microalgae with high lipid productivity is a crucial feature for biofuel and nutraceutical production. Therefore, screening of microalgae from different habitats has become highly significant to face the request on these bioresources. Accordingly, the present study aimed to screen the efficiency of biodiesel feedstock and the ability to accumulate essential fatty acids of four green microalgae (Chlorolobion braunii, Tetradesmus obliquus, Monoraphidium minutum, and Asterarcys quadricellulare), isolated from soil samples of Benha, Egypt. Although T.obliquus was the highest biomass productive species (114.86 mgL -1 d -1 ), but M. minutum was recorded as the highest species of lipid productivity (29 mg L -1 d -1 ). Fatty acid profiles of the four microalgae confirmed their suitability for biodiesel production as mentioned by the biodiesel properties within the limits of international standards. Species selection through PROMETHEE and GAIA analysis revealed that C. braunii is the best promising as a potential source for biodiesel production because it has a high saturated fatty acids proportion (39.75%) and shows cetane number (54.99) and low iodine value (100.57) and many other biodiesel properties within the standards limit. In addition, the screened microalgae showed a high percentage of omega fractions in their total fatty acids, whereas Asterarcys quadricellulare and M. minutum have high omega-3 fatty acids content of 34.4% and 28.9%, respectively.

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Section: Omega Fatty Acids From Microalgaesupporting

confidence: 57%

Screening of the potentiality of four green microalgae to be used as feedstock for biodiesel and nutraceutical production

Mohamed

Eladel

Battah

et al. 2022

Egyptian Journal of Phycology

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“…In general terms, this implies the conversion of biomass into a range of derivatives, from bulk compounds (e. g., for bioenergy uses) up to specialty chemicals. [3][4][5][6] Fundamental in this scenario is the role of the starting feedstocks and the need of robust criteria for their choice. In this paper, according to the Top 10 list of renewable building blocks defined by the Bozell-Petersen analysis, the focus has been placed on bio-based furanics, more specifically on the most representative member 5-hydroxymethylfurfural (HMF).…”

Section: Introductionmentioning

confidence: 99%

“…The competitiveness of any strategy must therefore ground on multiple‐output biorefining units where the biofuel production is integrated with the synthesis of “high‐value low‐volume” products. In general terms, this implies the conversion of biomass into a range of derivatives, from bulk compounds (e. g., for bioenergy uses) up to specialty chemicals [3–6] . Fundamental in this scenario is the role of the starting feedstocks and the need of robust criteria for their choice.…”

Section: Introductionmentioning

confidence: 99%

Tuning the Selectivity of the Hydrogenation/Hydrogenolysis of 5‐Hydroxymethylfurfural under Batch Multiphase and Continuous‐Flow Conditions

et al. 2022

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The hydrogenation/hydrogenolysis of 5-hydroxymethylfurfural (HMF) has been carried out either under single (aqueous) phase or batch multiphase (MP) conditions using mutually immiscible aqueous/hydrocarbon phases, 5 % Ru/C as a catalyst, and both with and without the use of trioctylmethyl phosphonium bis-(trifluoro methane) sulfonimide ([P 8881 ][NTf 2 ]) as an ionic liquid (IL). Alternatively, the hydrogenation of HMF was explored in the continuous-flow (CF) mode with the same catalyst. By changing reaction parameters, experiments were optimized towards the formation of three products: 2,5-bis(hydroxy methyl)furan (BHMF), 2,5-bis(hydroxymethyl)tetrahydrofuran (BHMTHF), and 1-hydroxyhexane-2,5-dione (HHD), which were obtained in up to 92, 90, and 99 % selectivity, respectively, at quantitative conversion. In particular, the single (aqueous) phase reaction of HMF (0.2 m) carried out for 18 h at 60 °C under 30 bar of H 2 , allowed the exclusive synthesis of BHMF from the partial (carbonyl) hydrogenation of HMF, while the MP reaction run at a higher T and p (100 °C and 50 bar) proved excellent to achieve only HHD derived from a sequence of hydrogenation/ hydrogenolysis. It is worth noting that under MP conditions, the catalyst was perfectly segregated in the IL, where it could be recycled without any leaching in the aqueous/hydrocarbon phases. Finally, the hydrogenation of HMF was explored in a H-Cube® flow reactor in the presence of different solvents, such as ethyl acetate, tetrahydrofuran, and ethanol. At 100 °C, 50 bar H 2 , and a flow rate of 0.1 mL min À 1 , the process was optimized towards the formation of the full hydrogenation product BHMTHF. Ethyl acetate proved the best solvent.

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“…The low content of stearic acid contributes to lowering the temperatures of CFPP [36]. The long-chain PUFAs, especially linoleic acid, resulted in improvement for biodiesel liquefaction like CFPP which is in desire for cold weather [37,33]. In agreement with Santhakumaran et al [38], a comparison for the biodiesel properties of the four screened microalgae species (Table 2) revealed that Chlorolobion lipid extract was the most suitable for biodiesel production.…”

Section: Microalgal Biodiesel Propertiesmentioning

confidence: 54%

Screening of four green microalgae potentially used as feedstock for biodiesel and nutraceuticals

Mohmmed

Eladel

Battah

et al. 2022

Preprint

Self Cite

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Detection of oleaginous microalgae with high lipid productivity is a crucial feature for biofuel and nutraceutical production. Therefore, screening of microalgae from different habitats has become highly significant to face the request on these bioresources. Accordingly, the present study aimed to screen the efficiency of biodiesel feedstocks and the ability to accumulate essential fatty acids of four green microalgae (Chlorolobion braunii, Tetradesmus obliquus, Monoraphidium miutum, and Asterarcys quadricellulare), isolated from soil samples of Benha Egypt. Although T.obliquus was the highest biomass productive species (689 mgL− 1d− 1), M. minutum recorded the top of lipid productivity (29 mg L− 1d− 1). Fatty acid profiles of the four microalgae confirmed their suitability for biodiesel production where it recorded biodiesel properties within the limits of international standards. Also, species selection through PROMETHEE and GAIA analysis revealed that C. braunii is the best promising as a potential source for biodiesel production because it has a high saturated fatty acids proportion (39.75%) and shows cetane number (54.99) and low iodine value (100.57) and many other biodiesel properties within the standards limit. In addition, the screened microalgae showed a high percentage of omega fractions in their total fatty acids. Asterarcys quadricellulare and M. minutum recorded high omega-3 fatty acids content of 34.4% and 28.9%, respectively.

show abstract

Dual use of a local Protosiphon isolate BENHA2020 for biodiesel production and antioxidant activity of lipid-free biomass: A novel biorefinery approach for biomass valorization

Cited by 5 publications

References 56 publications

Screening of the potentiality of four green microalgae to be used as feedstock for biodiesel and nutraceutical production

Screening of the potentiality of four green microalgae to be used as feedstock for biodiesel and nutraceutical production

Tuning the Selectivity of the Hydrogenation/Hydrogenolysis of 5‐Hydroxymethylfurfural under Batch Multiphase and Continuous‐Flow Conditions

Screening of four green microalgae potentially used as feedstock for biodiesel and nutraceuticals

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